GCSとActiveStorageを使った時に秘密鍵でエラー

サービスアカウントを発行して、キーを発行してその中身を

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bundle exec rails credentials:edit

してstorage.ymlで読み出そうとした時にprivate_keyに改行があるためにうまくいかなかった。

dumpを使えばおっけー

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Rails.application.credentials.gcs[:private_key].dump

全体はこう。

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google:
  service: GCS
  credentials:
    type: "service_account"
    project_id: <%= Rails.application.credentials.gcs[:project_id] %>
    private_key_id: <%= Rails.application.credentials.gcs[:private_key_id] %>
    private_key: <%= Rails.application.credentials.gcs[:private_key].dump %>
    client_email: <%= Rails.application.credentials.gcs[:client_email] %>
    client_id: <%= Rails.application.credentials.gcs[:client_id] %>
    auth_uri: "https://accounts.google.com/o/oauth2/auth"
    token_uri: "https://accounts.google.com/o/oauth2/token"
    auth_provider_x509_cert_url: "https://www.googleapis.com/oauth2/v1/certs"
    client_x509_cert_url: <%= Rails.application.credentials.gcs[:client_x509_cert_url] %>
  project: ''

参考 https://github.com/rails/rails/blob/master/guides/source/active_storage_overview.md

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